4 years ago

Please help me answer these

Mathematics

1 answer:

Dmitriy789 [7]4 years ago

5 0

Answer:

1 is 27

Step-by-step explanation:

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.If x2 + kx+ 6 = (x + 2) (x + 3) for all x, then the value of k is<br><br>

Verdich [7]

Answer:

k = 5

Step-by-step explanation:

$(x + 2)(x + 3) = {x}^{2} + 5x + 6$

Now comparing left hand side & right hand side ,

${x}^{2} + kx + 6 = {x}^{2} + 5x + 6$

Cancelling x^2 & 6 from both left hand side & right hand side ,

kx = 5x

=> k = 5

3 0

3 years ago

Find the coordinates of the midpoint HX giving that H(-1,3) and X(7,-1)

BigorU [14]

Midpoint is : (x1 + x2) / 2 , (y1 + y2) / 2
(-1,3)....x1 = -1 and y1 = 3
(7,-1)...x2 = 7 and y2 = -1
now we sub and solve
m = (-1 + 7)/2 , (3 - 1) / 2
m = (6/2, 2/2)
m = (3,1) <===

6 0

3 years ago

Read 2 more answers

Find the area of the rhombus

MAXImum [283]

<h3> Solution :-</h3>

Area of rhombus :-

$\bf \star \: \: \boxed{ \bf \dfrac{d_{1}d_{2}}{2} }$

$\sf \longrightarrow d_{1} = 4 \sqrt{3} + 4 \sqrt{3} = 8 \sqrt{3}$

$\sf \longrightarrow d_{2} = 4 + 4 = 8$

Area of rhombus :-

$: \implies \sf \dfrac{8 \sqrt{3} \times 8 }{2}$

$: \implies \sf 8 \sqrt{3} \times 4$

$: \implies \bf 32 \sqrt{3} \: {m}^{2}$

6 0

3 years ago

On Wednesday, Abby and Lauren could not practice together, so they practiced separately. Abby practiced for 11/12 of an hour and

Vadim26 [7]

Abby practiced for 55 minutes (60 minutes/12 and *11), Lauren practiced for 40 minutes (60/3 and *2)

3 0

3 years ago

Mr. Clark has a tank that holds 55,000 milliliters of gas. He poured some gas into three containers equally. There were 19,864 m

gizmo_the_mogwai [7]

Answer: The answer is that he poured out 35,136 milliliter of gas out of the tank

Step-by-step explanation:

7 0

3 years ago

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Please help me answer these